Deco S4, 3 nodes, one of which is wired via Ethernet to a NetGear router (Comcast Xfinity is my ISP).

Earlier this week i updated the Deco app on my iphone 13 mini, and since the my apple devices (iapd, wife's iphone) have been really slow when connected to the internet. Social media apps wont load, live streaming from Ring cameras do not work, and safari webpages either wotn load or are deathly slow. Prior to the update, everything was fine. 

I have rebooted my system, unplugged from the wall, unplugged the ehternet, unplugged the rooted, rebooted some more, etc. I am now one step away from getting rid of the system and buying Eero or something similar, but hoping someone here might have some advice that helps me solve the problem.